Question
When the Hubport/14 reboots, does it remap the USB peripherals as new USB devices, or does the mapping persist over power cycles?
Answer
Any attached USB devices are detected by the operating system just as they were before the Hubport/14 is rebooted or power cycled — the mapping persists, and devices are not remapped as new, previously unseen devices. The Hubport/14 is a standard, self-powered USB 2.0 hub that stores no device mapping of its own, so there is nothing in the hub to reassign. On a reboot or power cycle, the hub and its downstream peripherals simply re-enumerate through the normal USB attach process, and the OS re-detects each device by its own reported USB identity (such as vendor/product ID and serial number) and its unchanged physical port position.
Note that this refers to how the OS recognizes and maps each device. Some systems also assign short-lived enumeration values at boot (for example, Linux kernel bus/device numbers) that can vary; stable identifiers such as a device serial number or the Linux /dev/serial/by-id path remain consistent. How a device is ultimately surfaced (COM port, drive letter, device node) is determined by the host OS and the peripheral's driver, not by the Hubport.
Reference material
Last updated:
Jul 28, 2026